The passage continues to curve around to the east, leading to a set of rough stone steps leading south. To the left of the steps you can see the stream is flowing from the up above. Advancing up the steps you come into a larger cavern.
This cavern is half filled with what used to be two large pools of water, to your left, empty now after they drained them atop you. The cavern extends to the south and east (now your left). It is inhabited by 3 goblins, which are standing by the empty pools. On your right is a passage heading west, apparently toward the rickety bridge. On the far side of the chamber is another set of stairs leading up.
Seeing you climb the steps, the goblins panic. Two of them draw small javelins and another prepares to run toward the steps in the back of the room.
Goblin 1 rushes at Kama, taking a wild stab at him. He appears to score a very solid hit of Kama's chest, but as it begins to press through his armor the spear shatters in his hand. The shock of the spear exploding gives Kama time to swing back, his axe swinging right over the little goblin's head
Goblin 2 throws his javelin at Kama, which misses widely, and then draws a nasty looking little sword.
Goblin 3 makes a break for the stairs, shouting for assistance
Player Turn
Goblin 1 is standing in front of Kama with a broken spear
Goblin 2 is approaching Kama with a sword
Goblin 3 is at the base of the stairs of the other side of the room, about 25 feet from Kama
Also... Seriously? A crit that did 0 damage?
Rolls
Player Initiative - (1d20)
(9) = 9
Goblin Initiative - (1d20)
(16) = 16
Goblin 1 Attack/Damage on Kama - (1d20+1, 1d6-1)
1d20+1 : (20) + 1 = 21
1d6-1 : (1) - 1 = 0
Goblin 2 Attack/Damage on Kama - (1d20+1, 1d6-1)
1d20+1 : (9) + 1 = 10
1d6-1 : (3) - 1 = 2
Goblin 1, Critical Damage! - (1d6-1)
(1) - 1 = 0
Kama Opportunity attack on Goblin 1 - (1d20+5, 1d12+3)
1d20+5 : (5) + 5 = 10
1d12+3 : (1) + 3 = 4